WO2015021918A1 - Matière auto-lubrifiante contenant du fluor pour le revêtement de tissus et son procédé de préparation - Google Patents

Matière auto-lubrifiante contenant du fluor pour le revêtement de tissus et son procédé de préparation Download PDF

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Publication number
WO2015021918A1
WO2015021918A1 PCT/CN2014/084274 CN2014084274W WO2015021918A1 WO 2015021918 A1 WO2015021918 A1 WO 2015021918A1 CN 2014084274 W CN2014084274 W CN 2014084274W WO 2015021918 A1 WO2015021918 A1 WO 2015021918A1
Authority
WO
WIPO (PCT)
Prior art keywords
fluorine
parts
coating material
lubricating
self
Prior art date
Application number
PCT/CN2014/084274
Other languages
English (en)
Chinese (zh)
Inventor
戴李宗
毛杰
陈凌南
许一婷
曾碧榕
邱武辉
宋存峰
罗伟昂
康启龙
Original Assignee
厦门大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 厦门大学 filed Critical 厦门大学
Priority to US14/910,938 priority Critical patent/US20160208431A1/en
Publication of WO2015021918A1 publication Critical patent/WO2015021918A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/55—Epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/20—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the epoxy compounds used
    • C08G59/22—Di-epoxy compounds
    • C08G59/30—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen
    • C08G59/308—Di-epoxy compounds containing atoms other than carbon, hydrogen, oxygen and nitrogen containing halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
    • C08G59/18—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing
    • C08G59/40—Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups ; e.g. general methods of curing characterised by the curing agents used
    • C08G59/42—Polycarboxylic acids; Anhydrides, halides or low molecular weight esters thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/58—After-treatment
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/192—Polycarboxylic acids; Anhydrides, halides or salts thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
    • D06M2200/40—Reduced friction resistance, lubricant properties; Sizing compositions

Definitions

  • the present invention relates to a fluorine-containing self-lubricating coating material and a preparation method thereof, and more particularly to a coating material for a self-lubricating joint bearing fabric liner and a preparation method thereof.
  • the joint bearing also known as a spherical plain bearing, consists of a spherical outer ring and an outer spherical inner ring.
  • the self-lubricating joint bearing is a special form of joint bearing that does not require a lubricant.
  • the utility model has the advantages of simple structure, small volume, large bearing capacity, small friction coefficient, impact resistance, corrosion resistance, vibration reduction, wide temperature range, long service life, no maintenance and no need to add lubricant during work. Excellent characteristics, widely used in construction machinery, trucks, water conservancy facilities, military machinery and other aspects.
  • Fabric-lined self-lubricating joint bearing refers to the joint bearing with self-lubricating material in the form of fabric liner between the inner and outer rings. It has the characteristics of simple and compact structure, easy assembly and disassembly, high bearing capacity, long service life, flexible rotation and maintenance-free. Therefore, it has become more and more widely used in aviation, aerospace, electric power, transportation, biomedicine and textile equipment, and has become an indispensable key component of these equipments.
  • the main failure mode of fabric-linted self-lubricating joint bearings is wear.
  • the wear causes the gap between the inner and outer rings to be too large, and the gasket loses its normal lubrication ability. In severe cases, the related mechanism may become stuck. In situations such as aircraft landing gear systems, such failures often lead to catastrophic consequences. Therefore, the surface of the fabric liner often needs to be coated with some coatings, which not only can effectively fix the fabric after curing, but also prevent the walking position, and the self-lubricating coating will further reduce the friction coefficient.
  • fluoropolymers have many excellent properties such as heat resistance, corrosion resistance, hydrophobic oil, electrical insulation, low friction coefficient, biocompatibility and non-combustibility, making it the leader in many applications. , more and more people's attention.
  • Fluorine has the largest electronegativity, a small atomic radius, a short fluorocarbon bond, and a large bond energy.
  • the fluorine element is introduced into the epoxy resin to impart excellent solvent resistance and oil resistance to the fluorine-containing epoxy resin. Resistance to friction, surface self-cleaning and other properties.
  • Zhang Qiuming et al. (a self-lubricating epoxy resin material and its preparation method, Chinese patent, publication number CN 101348600A), a lubricating oil capsule, an epoxy resin and a curing agent are uniformly mixed and molded. Made from a lubricious epoxy resin material. This material can reduce the coefficient of friction to a certain extent. However, the lubricating oil capsules are unstable, have poor durability, and the materials can only be used now, and cannot be stored for a long time, and the application is limited. Freckmann et al. (Self-lubricating coatings and methods of making self-lubricating coatings, Chinese Patent, Publication No.
  • CN 102471917 A report a coating of a metal layer embedded with a lubricant that can be released by abrasion.
  • the lubricating effect of this coating lasts for a long time, but the preparation process is very complicated and cannot be applied to the coating of materials such as fabrics and polymer resins.
  • Guo Qiang et al. (Epoxy resin solid lubricating coating material and preparation method thereof, Chinese Patent, Publication No. CN 101717604 A) discloses an epoxy resin solid lubricating coating containing surface modified graphite oxide and a preparation method thereof, and overcomes The problem of poor dispersibility of the graphite solid lubricant in the resin solution, but the appearance of the material is affected to some extent, and the application is limited.
  • Fluorine-containing epoxy polymer self-lubricating coatings for joint bearing liner fabrics have not been reported so far.
  • the invention provides a simple method for preparing a self-lubricating coating, firstly synthesizing a fluorine-containing epoxy resin coating with a fluorine-containing monomer and epoxy chloropropene, curing with an acid anhydride curing agent and adding a reactive diluent.
  • the brittleness of the fluorine-containing epoxy coating is improved, the surface elastoplasticity of the coating is improved, and the common epoxy glue is difficult to penetrate into the fabric and the texture of the fixed fiber is not obtained, so that the comprehensive improvement is achieved on the basis of low friction and self-lubrication.
  • the performance of the joint bearing fabric is Moreover, the fluorine-containing epoxy coating provided by the invention is a solvent-free curing system, which meets the requirements of environmental protection.
  • the formulation of the fluorine-containing self-lubricating fabric coating material is as follows:
  • Ri and R 2 are both one (CF 2 ) n — and n is 1
  • R 3 and R 4 are both CF 3 or CF 2 CF 3 .
  • the curing agent is an acid anhydride compound or the like which is used in combination with a fluorine-containing epoxy resin, such as phthalic anhydride, pyromellitic anhydride, methylcyclohexenetetracarboxylic anhydride, maleic anhydride or the like.
  • a fluorine-containing epoxy resin such as phthalic anhydride, pyromellitic anhydride, methylcyclohexenetetracarboxylic anhydride, maleic anhydride or the like.
  • the reactive diluent is 1,6-hexanediol diacrylate, ?-hydroxyethyl methacrylate, tolyl glycidyl ether, castor oil polyglycidyl ether or ethylene glycol diglycidyl ether.
  • the silicon surfactant is a silicon germanium type, a siloxane type, an anionic type, a cationic type or a nonionic type silicon surfactant.
  • the preparation method of the fluorine-containing self-lubricating fabric coating material is as follows: according to the coating composition, firstly dissolving in a sequential order according to the silicon germanium coupling agent and the curing agent, and stirring for 0.5 to 1 hour to obtain a homogeneous solution. Next, add the fluorine-containing epoxy resin to the solution in batches under stirring, and stir for 1 to 2 hours until uniform.
  • the fabric agent is cleaned and then the coating material prepared by the invention is brushed and baked at 40 ⁇ 60 ° C by air blowing. The box is baked for 1 ⁇ 2 hours, then applied with a pressure of 0.2 ⁇ 0.3 Mpa and heated to 150 ⁇ 170 °C for 2 ⁇ 3 hours for curing.
  • the fluorine-containing epoxy resin is selected to retain the woven fibers to prevent friction and wear caused by the fabric. That is, the good adhesion of the epoxy resin is utilized, and the modification of the fluorine-containing epoxy reduces the friction coefficient of the coating and improves the self-lubricating property of the coating.
  • the reactive diluent is used, the coating material can effectively impregnate the fiber, and the curing agent is an acid anhydride and a reactive diluent system, which improves the elastoplasticity, can effectively disperse the stress and improve the bearing capacity of the bearing.
  • Figure 1 is a nuclear magnetic spectrum of a fluorine-containing resin in Example 1.
  • Fig. 2 is an infrared spectrum of the fluorine-containing resin of Example 1.
  • the invention synthesizes a fluorine-containing epoxy resin coating with a fluorine-containing monomer and epoxy chloropropene, cures with an acid anhydride curing agent and adds a reactive diluent, improves the brittleness of the fluorine-containing epoxy coating, and improves the surface bomb of the coating.
  • the plasticity and the improvement of the ordinary epoxy glue are difficult to penetrate into the fabric and fail to achieve the purpose of fixing the fiber texture, thereby comprehensively improving the performance of the joint bearing fabric on the basis of low friction and self-lubrication.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Metallurgy (AREA)
  • Mechanical Engineering (AREA)
  • Paints Or Removers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

L'invention concerne une matière auto-lubrifiante contenant de fluor pour le revêtement de tissus et son procédé de préparation, appartenant au domaine technique de matières de revêtement. La formulation comprend : 30 à 70 parties d'une résine fluorée, 10 à 40 parties d'un durcisseur, 5 à 25 parties d'un diluant actif, 0,4 à 5 parties d'un agent de couplage silane et 0,5 à 3 parties d'un tensio-actif silicone. La présente invention comprend des polymères fluorés à teneur élevée en fluor et de stabilité élevée, et est une matière de revêtement écologique exempte de solvant ayant une large plage d'applications. La matière de revêtement présente une bonne résistance aux intempéries, des procédés de fabrication simples et des propriétés auto-lubrifiantes exceptionnelles.
PCT/CN2014/084274 2013-08-13 2014-08-13 Matière auto-lubrifiante contenant du fluor pour le revêtement de tissus et son procédé de préparation WO2015021918A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/910,938 US20160208431A1 (en) 2013-08-13 2014-08-13 Fluorine-containing self-lubricating fabric coating material and method for preparing the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310352654.6A CN103410003B (zh) 2013-08-13 2013-08-13 一种含氟自润滑型织物涂层材料及其制备方法
CN201310352654.6 2013-08-13

Publications (1)

Publication Number Publication Date
WO2015021918A1 true WO2015021918A1 (fr) 2015-02-19

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Country Link
US (1) US20160208431A1 (fr)
CN (1) CN103410003B (fr)
WO (1) WO2015021918A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103410003B (zh) * 2013-08-13 2016-03-23 厦门大学 一种含氟自润滑型织物涂层材料及其制备方法
CN103450725B (zh) * 2013-08-13 2016-08-03 厦门大学 一种环境友好型含氟硅重防腐环氧树脂涂料及其制备方法
CN106435923A (zh) * 2015-08-05 2017-02-22 东丽纤维研究所（中国）有限公司 一种自润滑织物及其生产方法和用途
CN105733408B (zh) * 2016-04-01 2019-07-23 厦门大学 一种用于关节轴承的自润滑涂层及其制备方法
CN105778717A (zh) * 2016-04-01 2016-07-20 厦门大学 一种含氟硅环氧树脂耐辐射涂料及其制备方法
WO2021172319A1 (fr) * 2020-02-28 2021-09-02 セントラル硝子株式会社 Résine durcissable, composition de résine durcissable, produit durci, dispositif électronique, matériau de carte stratifiée, agent d'encapsulation de composant électronique et procédé de production de résine durcissable
CN111944365A (zh) * 2020-07-29 2020-11-17 北京擎科生物科技有限公司 耐腐蚀涂膜及其制备方法、应用

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06211963A (ja) * 1993-01-20 1994-08-02 Shin Etsu Chem Co Ltd 熱硬化性樹脂組成物
US5679752A (en) * 1995-03-15 1997-10-21 Minnesota Mining And Manufacturing Company Magnetic recording medium incorporating fluorine-containing, solvent-soluble vinyl copolymer having no vinyl chloride or vinylidene chloride components
CN1259599A (zh) * 1999-12-24 2000-07-12 中国科学院兰州化学物理研究所 自润滑织物薄层复合材料及其制备方法
CN102827528A (zh) * 2012-09-14 2012-12-19 东华大学 一种有机氟硅环氧涂料及其制备方法
CN103174022A (zh) * 2013-02-01 2013-06-26 厦门大学 一种自润滑关节轴承织物衬垫涂层材料及其制备方法
CN103410003A (zh) * 2013-08-13 2013-11-27 厦门大学 一种含氟自润滑型织物涂层材料及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003268075A (ja) * 2002-03-15 2003-09-25 Meidensha Corp 屋内外用絶縁高分子材料組成物
CN1279078C (zh) * 2003-12-10 2006-10-11 中国科学院化学研究所 一种含氟环氧树脂及衍生物和制备方法与应用
CN103044857B (zh) * 2012-12-11 2015-03-11 东莞上海大学纳米技术研究院 环氧树脂硅溶胶、环氧树脂有机-无机纳米杂化材料及其制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06211963A (ja) * 1993-01-20 1994-08-02 Shin Etsu Chem Co Ltd 熱硬化性樹脂組成物
US5679752A (en) * 1995-03-15 1997-10-21 Minnesota Mining And Manufacturing Company Magnetic recording medium incorporating fluorine-containing, solvent-soluble vinyl copolymer having no vinyl chloride or vinylidene chloride components
CN1259599A (zh) * 1999-12-24 2000-07-12 中国科学院兰州化学物理研究所 自润滑织物薄层复合材料及其制备方法
CN102827528A (zh) * 2012-09-14 2012-12-19 东华大学 一种有机氟硅环氧涂料及其制备方法
CN103174022A (zh) * 2013-02-01 2013-06-26 厦门大学 一种自润滑关节轴承织物衬垫涂层材料及其制备方法
CN103410003A (zh) * 2013-08-13 2013-11-27 厦门大学 一种含氟自润滑型织物涂层材料及其制备方法

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Publication number Publication date
US20160208431A1 (en) 2016-07-21
CN103410003B (zh) 2016-03-23
CN103410003A (zh) 2013-11-27

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